My favorite idol of all time is Michael Jackson, and I believe that he is also an idol of many people all over the world. He appeared to be a star at a very young age, and his talent continued to shine brightly through time. In his early 20s, he officially started his individual singing career and became one of the legends of the music industry. Throughout his life, Michael had sold out more than 400 million music records and won many honorable awards. His name, music, dancing skills, personal life and information was the hottest subject for the mass media at that time. People could not stop talking about him, and it could be said that there was nobody that had not heard of Michael Jackson. He was not only a singer and professional dancer, but he was also a producer, musician, and actor. His light as a King of Pop was supposed to shine for many more decades, but there were many scandals that came to him a fierce flood had drown him to the bottom of the lake. He spent many of his last years to face charges as well as financial problems. In 2009, audiences had expected him to return in an international tour named This Is It, but an accident in wrong usage of medicines had taken his life in shock. People on over the world were informed about his death, and it was said that no one could ever replace his position to be the King of Pop. Although he had a lot of troubles in his life, people cannot deny the fact that he made many positive influences on the music industry. Michael Jackson had dedicated his life to art, and all of his effort will forever be remembered.

My favorite celebrity is Emma Watson. She is known for the movie Harry Potter series which she played the heroine. She was born on April, 15th, 1990, in Oxford England. She has brown big eyes and brunet hair. She is tall and thin. She is not only very beautiful and femininity but also very smart just the Hermione who is one of the role in Harry Potter and always gets good grades. She s to put on a play which is one of her dream when she was very young, now her dream came true and has an achievement .Most important of all, the reasons why I admire her are that her acting is masterly and her character is not cocky after became famous as an adolescent just us

HT.

Gọi ƯCLN(2x+5;x+2) = d(d\(\in N\))

Ta có:

2x+5 chia hết cho d;x+2 chia hết cho d

\(\Rightarrow\)2x+5 chia hết cho d;2(x+2) chia hết cho d

\(\Rightarrow\)2x+5 chia hết cho d;2x+4 chia hết cho d

\(\Rightarrow\)2x+5-(2x+4) chia hết cho d

\(\Rightarrow\)2x+5-2x-4 chia hết cho d

\(\Rightarrow\)1 chia hết cho d\(\Rightarrow d\inƯ\left(1\right)=\left\{1\right\}\Rightarrow d=1\)

\(\RightarrowƯCLN\left(2x+5;x+2\right)=1\)

\(\Rightarrow\)2x+5 không chia hết cho 3 hoặc x+2 không chia hết cho 3 hoặc cả hai không chia hết cho 3

TH1:2x+5 không chia hết cho 3;x+2 chia hết cho 3

\(\Rightarrow\)(2x+5).(x+2)\(\ne\)3^y

\(\Rightarrow\)Không có cặp số (x,y) thỏa mãn

TH2:2x+5 chia hết cho 3;x+2 không chia hết cho 3

\(\Rightarrow\)(2x+5).(x+2)\(\ne\)3^y

\(\Rightarrow\)Không có cặp số (x,y) thỏa mãn

TH3:2x+5 không chia hết cho 3;x+2 không chia hết cho 3

\(\Rightarrow\)(2x+5).(x+2)\(\ne\)3^y

\(\Rightarrow\)Không có cặp số (x,y) thỏa mãn

Vậy không có cặp số tự nhiên (x,y) thỏa mãn

https://www.youtube.com/channel/UCjP80p-OtLhNnRs-R4Q7yjw

cảm ơn hai cậu nha, Huyền và ánh

cậu hok trường nào vậy . bài này trong violimpic toán có đó bn thi hả??????

Hello

bài 11 

x = -21

y = 84

z = 12

t = -119

u = 91

mình cũng không chắc lắm, tại lâu chưa học lại phân số , có gì sai sót mong bnaj thông cảm nhé

\(3x+\frac{1}{2}=\frac{3}{4}\)

\(3x=\frac{3}{4}-\frac{1}{2}\)

\(3x=\frac{3}{4}-\frac{2}{4}=\frac{1}{4}\)

\(\Rightarrow x=\frac{1}{12}\)

Vậy _{\(x=\frac{1}{12}\)}

\(-\frac{2}{3}-\frac{1}{3}\left(2x-5\right)=\frac{3}{2}\)

\(\frac{1}{3}\text{​​}\text{​​}\left(2x-5\right)=-\frac{2}{3}-\frac{3}{2}\)

\(\frac{1}{3}\left(2x-5\right)=-\frac{4}{6}-\frac{9}{6}\)

\(\frac{1}{3}\left(2x-5\right)=-\frac{13}{6}\)

\(\left(2x-5\right)=-\frac{13}{6}:\frac{1}{3}\)

\(\left(2x-5\right)=-\frac{13}{6}.3=-\frac{13}{2}\)

\(2x=-\frac{13}{2}+5\)

\(2x=-\frac{13}{2}+\frac{10}{2}=-\frac{3}{2}\)

\(x=-\frac{3}{2}:2\)

\(x=-\frac{3}{2}.\frac{1}{2}=-\frac{3}{4}\)

Vậy _{\(x=-\frac{3}{4}\)}

_{\(\left(3\frac{1}{2}+2x\right):\frac{3}{14}=\frac{7}{12}\)}

\(\left(3\frac{1}{2}+2x\right)=\frac{7}{12}.\frac{3}{14}\)

\(\left(3\frac{1}{2}+2x\right)=\frac{1}{8}\)

\(2x=\frac{1}{8}-3\frac{1}{2}\)

\(2x=\frac{1}{8}-\frac{7}{2}\)

\(2x=\frac{1}{8}-\frac{28}{8}\)

\(2x=-\frac{27}{8}\)

\(x=-\frac{27}{8}:2\)

\(x=-\frac{27}{16}\)

Vậy _{\(x=-\frac{27}{16}\)}

ua j v bao cao nhe

bạn cần vế vui chơi trong nước mắt vì bị khóa tài khoản ko bạn mình sẽ phụ trách chụp hai dòng nước mắt

Bài làm

Gọi a là số nhóm nhiều nhất

Vì : \(195⋮a\)

       \(117⋮a\)

Nên : a = \(ƯCLN\left(195;117\right)\)và a là số nhiều nhất

   \(195=3.5.13\)

    \(117=3^2.13\)

\(ƯCLN\left(195;117\right)=3.13=39\)

Vậy chia nhiều nhất thành 39 tổ

Số học sinh nam : \(195:39=5\)học sinh

Số học sinh nữ :\(117:39=3\)học sinh

Học Tốt !

nhiều nhất 39 tổ, tổ nam 5, tổ nữ 3

Hello. Here's my menu for day.

First, I eat some almond.

Next, I've got an apple, it's very fresh.

Then, I the main course is salad with tomatos, carrots and cucumber. It is very good for health

Finally, my favourite : ice-cream. I eat cream with some fruit .

Enjoy your meal ! Join me tomorrow for another menu.

Hello everyone , here have a new menu

Frist , I eat cucumber 

Next , I got a steak 

Then , the main course we have a cabbage and carrots and tomato for fish and pizza macoroni

Finally , my favourite food is chicken . I'ts It's a high-temperature deep-fried thing with crispy fat . Then the meal , I Dessert with a cool ice cream

Enjoy that meals ! We join new menu in tomorow

1, gọi số học sinh khối 6 là x (x thuộc N*; x < 500; học sinh)

nếu xếp vào hàng 6;8;10 em thì vừa đủ nên x thuộc BC(6;8;10)

có 6 = 2.3 ; 8 = 2^3; 10 = 2.5

=> BCNN(6;8;10) = 2^3.3.5 = 120

=> x thuộc B(120)  mà x < 500 và x thuộc N*

=> x thuộc {120; 240; 480}

VÌ x ; 7 dư 3 đoạn này đề sai

7 dư 3 nhá